A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology

Plant electrophysiology lays the foundation for smart plant interrogation and intervention. However, plant trichomes with hair-like morphologies present topographical features that challenge stable and high-fidelity non-invasive electrophysiology, due to the inadequate dynamic shape adaptability of...

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Main Authors: Luo, Yifei, Li, Wenlong, Lin, Qianyu, Zhang, Feilong, He, Ke, Yang, Dapeng, Loh, Xian Jun, Chen, Xiaodong
Other Authors: School of Materials Science and Engineering
Format: Journal Article
Language:English
Published: 2021
Subjects:
Online Access:https://hdl.handle.net/10356/147130
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author Luo, Yifei
Li, Wenlong
Lin, Qianyu
Zhang, Feilong
He, Ke
Yang, Dapeng
Loh, Xian Jun
Chen, Xiaodong
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Luo, Yifei
Li, Wenlong
Lin, Qianyu
Zhang, Feilong
He, Ke
Yang, Dapeng
Loh, Xian Jun
Chen, Xiaodong
author_sort Luo, Yifei
collection NTU
description Plant electrophysiology lays the foundation for smart plant interrogation and intervention. However, plant trichomes with hair-like morphologies present topographical features that challenge stable and high-fidelity non-invasive electrophysiology, due to the inadequate dynamic shape adaptability of conventional electrodes. Here, this issue is overcome using a morphable ionic electrode based on a thermogel, which gradually transforms from a viscous liquid to a viscoelastic gel. This transformation enables the morphable electrode to lock into the abrupt hairy surface irregularities and establish a conformal and adhesive interface. It achieves down to one tenth of the impedance and 4-5 times the adhesive strengths of conventional hydrogel electrodes on hairy leaves. As a result of the improved electrical and mechanical robustness, the morphable electrode can record more than one order of magnitude higher signal-to-noise ratio on hairy plants and maintains high-fidelity recording despite plant movements, achieving superior performance to conventional hydrogel electrodes. The reported morphable electrode is a promising tool for hairy plant electrophysiology and may be applied to diversely textured plants for advanced sensing and modulation.
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spelling ntu-10356/1471302023-07-14T15:49:00Z A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology Luo, Yifei Li, Wenlong Lin, Qianyu Zhang, Feilong He, Ke Yang, Dapeng Loh, Xian Jun Chen, Xiaodong School of Materials Science and Engineering Institute of Material Research and Engineering, A*STAR Innovative Centre for Flexible Devices Engineering::Materials::Organic/Polymer electronics Bioelectronics Supramolecular Hydrogels Plant electrophysiology lays the foundation for smart plant interrogation and intervention. However, plant trichomes with hair-like morphologies present topographical features that challenge stable and high-fidelity non-invasive electrophysiology, due to the inadequate dynamic shape adaptability of conventional electrodes. Here, this issue is overcome using a morphable ionic electrode based on a thermogel, which gradually transforms from a viscous liquid to a viscoelastic gel. This transformation enables the morphable electrode to lock into the abrupt hairy surface irregularities and establish a conformal and adhesive interface. It achieves down to one tenth of the impedance and 4-5 times the adhesive strengths of conventional hydrogel electrodes on hairy leaves. As a result of the improved electrical and mechanical robustness, the morphable electrode can record more than one order of magnitude higher signal-to-noise ratio on hairy plants and maintains high-fidelity recording despite plant movements, achieving superior performance to conventional hydrogel electrodes. The reported morphable electrode is a promising tool for hairy plant electrophysiology and may be applied to diversely textured plants for advanced sensing and modulation. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) National Research Foundation (NRF) The authors thank the financial support from the Agency for Science, Technology and Research under its AME Programmatic Funding Scheme (A18A1b0045), the National Research Foundation, Prime Minister’s Office, Singapore, under its NRF Investigatorship (NRFNRFI2017- 07), and Singapore Ministry of Education (MOE2019-T2-2-022). 2021-04-19T05:32:26Z 2021-04-19T05:32:26Z 2021 Journal Article Luo, Y., Li, W., Lin, Q., Zhang, F., He, K., Yang, D., Loh, X. J. & Chen, X. (2021). A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology. Advanced Materials, 33(14), e2007848-. https://dx.doi.org/10.1002/adma.202007848 0935-9648 0000-0002-3312-1664 https://hdl.handle.net/10356/147130 10.1002/adma.202007848 33660373 2-s2.0-85101922930 14 33 e2007848 en A18A1b0045 NRF-NRFI2017-07 MOE2019-T2-2-022 Advanced Materials This is the peer reviewed version of the following article: Luo, Y., Li, W., Lin, Q., Zhang, F., He, K., Yang, D., Loh, X. J. & Chen, X. (2021). A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology. Advanced Materials, 33(14), e2007848-. https://dx.doi.org/10.1002/adma.202007848, which has been published in final form at https://doi.org/10.1002/adma.202007848. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. application/pdf
spellingShingle Engineering::Materials::Organic/Polymer electronics
Bioelectronics
Supramolecular Hydrogels
Luo, Yifei
Li, Wenlong
Lin, Qianyu
Zhang, Feilong
He, Ke
Yang, Dapeng
Loh, Xian Jun
Chen, Xiaodong
A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology
title A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology
title_full A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology
title_fullStr A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology
title_full_unstemmed A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology
title_short A morphable ionic electrode based on thermogel for non-invasive hairy plant electrophysiology
title_sort morphable ionic electrode based on thermogel for non invasive hairy plant electrophysiology
topic Engineering::Materials::Organic/Polymer electronics
Bioelectronics
Supramolecular Hydrogels
url https://hdl.handle.net/10356/147130
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